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Reverse Engineering / Re: DIGIC 8 DryOS Shell (drysh) investigation
« on: October 28, 2021, 09:07:24 AM »
Any one know method for getting ROM menu on working camera? There is useful console for reading-writing Flash ROM, it launches on flash integrity fail.
I need to transfer entire FLASH ROM contents (both ROM chips) from working camera to soft-dead camera (Canon 5D2). On dead camera I can boot to Flash ROM console, due integrity fail and perform fullflash. On working camera I cant. All that I reached is to launch "Command Menu" "Detail Analisys Menu" and shorting RAM data lines on startup. Those tools can dump memory by 4 bytes, but it will took too much time.
I need to transfer entire FLASH ROM contents (both ROM chips) from working camera to soft-dead camera (Canon 5D2). On dead camera I can boot to Flash ROM console, due integrity fail and perform fullflash. On working camera I cant. All that I reached is to launch "Command Menu" "Detail Analisys Menu" and shorting RAM data lines on startup. Those tools can dump memory by 4 bytes, but it will took too much time.